character set

A particular mapping between characters and byte strings, i.e. the combination of a particular character encoding (which maps between byte strings and integers) and a particular coded character set (which maps between integers and characters).

For example: ASCII (the ASCII coded character set, encoded directly as single-byte values), or UTF-8 (the Unicode coded character set, encoded with an 8-bit transformation method).

The character repertoire is the complete set of all characters in the character set.